Casdreavus hang motionless in the branches of trees during the day, wrapping their long trailing tendrils around themselves to disguise themselves as flower buds. At night, they unfurl, waiting to surprise passing people and taking joy in their fear.
A Casdreavus frightens people with a creepy, sobbing cry. To avoid detection by its enemies, it hides motionlessly beneath large leaves and in the gaps of branches.
